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 ###Instrução: Quem ganhou o simples masculino em 1994?
 ###Tabelas: CREATE TABLE dvb-t (dvb-t_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Region VARCHAR, Programming VARCHAR, Type VARCHAR, Encryption VARCHAR) CREATE TABLE a_lyga (a_lyga_id AUTO_INCREMENT PRIMARY KEY, Position INT, Club VARCHAR, Games played INT, Wins INT, Draws INT, Loses INT, Goals scored INT, Goals conceded INT, Points INT) CREATE TABLE past_winners (past_winners_id AUTO_INCREMENT PRIMARY KEY, Year INT, Mens singles VARCHAR, Womens singles VARCHAR, Mens doubles VARCHAR, Womens doubles VARCHAR, Mixed doubles VARCHAR) CREATE TABLE most-visited_countries_by_international_tourist_arrivals (most-visited_countries_by_international_tourist_arrivals_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Country VARCHAR, UNWTO Region VARCHAR, International tourist arrivals (2012) VARCHAR, International tourist arrivals (2011) VARCHAR, Change (2011 to 2012) VARCHAR, Change (2010 to 2011) VARCHAR) CREATE TABLE doubles:_43_26–17 (doubles:_43_26–17_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponent VARCHAR, Score VARCHAR)  
SELECT Mens singles FROM past_winners WHERE Year = 1994